At 21 years old, Padmanabh Singh controls a fortune of between $697 million and $855 million and is called a "king."

Padmanabh Singh, full title Maharaja Sawai Padmanabh Singh of Jaipur, is the young monarch of Jaipur, a city in northwestern India famous for its pink architecture and imperial palaces.

Singh's royal title is not officially recognized by law, as India is a federal parliamentary democratic republic with a president and a prime minister. But it "still inspires respect in this deeply hierarchical country where the aristocracy is venerated despite rapid social change," according to the Guardian.

The wealth of the royal family is estimated to be between $697 million and $2.8 billion.

Singh spends his time playing polo, studying liberal arts, walking in fashion shows, and traveling the world. And most recently? Moonlighting as an Airbnb host.

Singh listed a private suite in his family's palace on Airbnb last November, making him the platform's first royal host. While parts of the palace area already open to the public, the one-bedroom, one-bathroom suite was previously used by the royal family to host high-profile guests like Oprah Winfrey and Princess Diana. Nightly rental rates are just under $8,000, excluding taxes and fees.

Here's a look at the young royal's life.

Padmanabh Singh is the 21-year-old king of Jaipur, India. His full title is Maharaja Sawai Padmanabh Singh of Jaipur.

Singh, whose family and friends call him "Pacho," is the 303rd descendant of the royal family of Jaipur.

He became king in 2011 after the death of his grandfather, Sawai Man Singhji Bahadur, who was called "the last Maharaja of Jaipur" when he died because he ascended to the throne soon before royal privileges stopped being recognized in India.

Padmanabh Singh at his coronation ceremony in Jaipur on April 28, 2011.
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The young royal spent the day visiting several temples and carrying out traditional rituals and ceremonies.

A pink and gold silk umbrella was carried over his head as he walked into a court of former nobles.

The former nobles were there to offer him Nazar, a traditional form of respect.

Maharaja Sawai Padmanabh Singh of the erstwhile royal family of Jaipur during his 18th birth anniversary celebrations with traditional rituals at the City Palace on July 12, 2016 in Jaipur, India.
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Singh lit a bonfire at the City Palace in Jaipur for Holi in 2018.

While the origin of the royal family's wealth is unclear, Singh is likely worth hundreds of millions of dollars. The Jaipur royal family is known to control "immense wealth," but estimates of their actual fortune vary, from $621.8 million in 2011, which would be worth about $696.7 million today ...

... all the way up to 20,000 rupees crores. One crore is equal to 10 million rupees, or about $142,531. So if Singh is worth 20,000 rupees crores, as one Indian newspaper estimates, that would equal about $2.8 billion.

In addition to their City Palace residence, the royal family of Jaipur also owns the Jaigarh fort, part of the Amber Palace ...

... and Jaipur House, a luxurious summer retreat in Mount Abu, more than 300 miles from Jaipur, that's now run as a hotel.

Singh has big plans as the Maharaja of Jaipur. "We are in a democracy now, and I cannot let my background go to my head," he told the Week magazine. He added that he could never be content "to just live in this bubble and not travel the world."

Singh began that process last November. He listed a private suite in his family's palace on Airbnb, making him the platform's first royal host.

The suite comes equipped with a butler and rentals (starting at just under $8,000 per night) started in January 2020. In the past, the accommodations were used by the royal family to host guests like Princess Diana and Oprah Winfrey.